WASHINGTON, July 15 -- Law firms assisted companies in the following recently announced transactions: * * * Debevoise & Plimpton... ...advised Morgan Stanley Investment Management in the formation of North Haven Venture Capital Opportunities Fund I, a fund that closed at approximately $280 million. The law firm provided counsel to facilitate the establishment and closing of this significant investment fund. The Debevoise team was led by investment management partner Sally Bergmann Hardesty an more ST